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9 MAY 07: CESSNA TESTS NEW WILLIAMS ENGINE

CESSNA has flown for the first time the new Williams FJ44-4A engine aboard a Citation test bed aircraft. The FJ44-4A will power the new Citation CJ4 under development.

First flight of the CJ4 is scheduled for the first half of 2008 and entry into service is set for the first half of 2010.

"The first flight of the new engine went very well, and performance exceeded our expectations during the 50-minute flight," said CJ4 program manager Norm Baker.

The FJ44-4A has the best thrust-to-weight ratio in its thrust class, says Williams, and it incorporates several aerodynamic improvements that yield a significant reduction in fuel consumption.

On the CJ4, the twin engines each provide 3400 pounds of thrust (de-rated from 3600 pounds), compared to 2820 pounds of the CJ3's FJ44-3A.

"Every lesson we've learned in 3 million FJ44 flight hours has been applied to this latest model," said Gregg Williams, President and CEO of Williams International. "It is our most efficient engine yet. It will enter service with a 5000-hour TBO."

W: www.cj4.cessna.com

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